williams



(No Model.)

L. 'N. D. WILLIAMS.

KNITTING MACHINE r 1 Patented Aug. 22, 1893.

WITNESSES: INVENTOH MW? I @W I A TTOHNE Y.

UNITED STATES PATENT OF ICE.

LOUIS N. D. W'ILLIAMS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OFONE-HALF TO ROBERT W. SCOTT, OF SAME PLACE.

KNITTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 503,922, dated August22, 1893.

Application filed May 17, 1893. Serial No. 474,622. (No model.)

To all whom it may concern.-

Be it known that I, LOUIS N. D. WILLIAMS, a citizen of theUnited States,residingat Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inKnitting- Machines; and I do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to the letters ofreference marked thereon, which form a part of this specification.

My invention relates to certain improvements in knitting machines inwhich the cam ring is provided with a removable segment, or where theentire ring is divided into a number of segments, and its object is toso construct the cam ring that the segment or segments may be readilyremoved when it becomes necessary to gain access to the needles on anyportion of the needle cylinder to make examinations or repairs.

In the accompanying drawings: Figure 1, is a sectional elevation on theline 1--1, Fig. 2 of sufiicient of a circular knitting machine toillustrate my invention. Fig. 2, is a plan View of the cam ring'and itssupporting gear, and Fig. 3, is a detached perspective view of one ofthe cam segments.

Referring to the drawings, A represents the base of an ordinary form ofcircular knitting machine, of small diameter, to which is secured theneedle cylinder (not shown). The base is provided, as usual, with acircular guideway for a cam ring 0, having cams for actuating theneedles of the cylinder, and provided with a bevel gear 0, which engagesa driving pinion for rotating the same.

In the accompanyingdrawings all unnecessary portions of the machineirrelative to the invention, have been omitted for the sake ofclearness, and for further details of construction, reference is to behad to Letters Patent of the United States, numbered 421,147, granted toRobert W. Scott and Louis N. D. Williams on the 11th day of February,1890.

The present invention is designed more es pecially for use in connectionwith machines &c., and as described in the above mentioned patent.

The cam ring is divided into any desired number of segments 0, two inthe present instance, which form, when in position, a continuouscircular ring. Each section may be removed from its position withoutdisturbing the other section or sections, and each is in-' dependentlysecured to a base ring D, preferably formed integral with the bevel gearC. Secured to, or formed integral with, these segments are the uppersections 0', of the operating cams, that is, that portion of the camabove the groove traversed by the needle bits, and this portion of thecam moves in a vertical direction with the segment of the cam ring towhich it is attached when the latter is removed, and the needle bits,being below the section 0, of the cam, will not interfere with thisupward movement. That section 0 of the cams, below the path of theneedle bits, is separate from the main cam ring, and when the latter isremoved, the section a may be moved out into the space left between thebase ring D, and the needle cylinder, or, in some cases it may not benecessary to move it from its normal position. These lower sections ofthe operating cams are held to the segments 0 by screws 01 which extendthrough the base ring, the segments, and the said lower sections 0 andit is only necessary to employ,

a single screw for each segment, or, where the clear space is then leftbetween the base ring we D and theneedle cylinder ta permit its lateralmovement from under the needle bits. in some cases the orifice made forthe passage of the screw d, through the cam segment may be continued inthe form of a slot extending to the lower edge of the segment as shownin dottcdlines in Fig. 3, so that 'to'remove the: latter it will merelybe necessary to loosen the holding screw cl suflicient to permit thewithdrawal of the segment, and afterward the lower section may be drawninto-the space'between the base ring and the needle cylinder, by meansof the screw d. I Having'thus described my invention,what I claim, anddesire to secure byLetters Patent, is 1..A cam ringforknitting machines,having; atremovable-segment,-operating cams formed l in two sections,situated respectivelyabove :andbelowthe needlebits andforming agroove inwhich such needle :bits may travehthe lower of suchpsections being.detachablyconnected to the removable-segment, and ithe. np-; per of:such sections being: secured to l the. removable segment, substantiallyas specified. 2. Anamring forknitting machines, having a :removable:segment, qperatingiflams formed in two sections, situated respectivelyabove and below theneedle bits and forming a groove in which snchneedlebits may travel, the lowerof, such-sectionsbeing detachably con- .nectedto l the removable; segmentyandthe upper ofisuchlsections being securedto thememovable segment, and said cam ringhaving, also atbaseringforminga wrearsnpportingi a base ring forminga ,rear supporting wallforthe segment andto which it is secured, sub- .-stantially:asspecified.

4. A cam ring having a removable segment, operating camsformed in,twolsections,-situated respectively above :andlbelow. the :needle,bitsand .forminga groove in=whicht such meezdle bits. may travel,thelowerof rSllGll sections being. detachablytconnected :tothe removablesegment, and the upperof such sectionsbe- ,ingsecuredto the immovablesegment, said ,cam -;ring )having also ,a base ringforming ,a.rearsupport for such segment, anda-securing ,screw extending throughsuch base ring, the .segmenn-and the lower section of .the operat- ,ingcam, substantially as specified.

In. testimony whereof ,Iafiixmy-signature in presence of two witnesses.

. .INo. E. PARKER, .11. GORDON MeOoUcH.

